1) cancel of direct signal
直达信号抑制
1.
The difficulties of passive location using GSM and CDMA system for low-altitude flying target were introduced,which include the operation range,the cancel of direct signal,the synchronization precision and GDOP,and the solutions for them using more correlator time and particle filter algorithm aided by kinematic model of target were also proposed.
针对无源定位系统的特点和GSM,CDMA移动通信系统信号结构,详细分析了2种移动通信系统环境下实现对低空飞行目标无源定位的关键指标和主要技术参数,介绍了移动通信系统实现低空飞行目标无源定位存在的难点-作用距离、直达信号抑制、同步精度、几何精度因子等,对存在的难点给出了增加积累时间和目标运动模型辅助粒子滤波算法等解决建议。
2) line of sight
直达信号
3) Inhibitory signal
抑制信号
5) direct wave suppression
直达波抑制
6) direct-path signal
直达波信号
补充资料:直达
1.谓直接到达,直通。 2.谓交通便利,往来自如。 3.谓直接送呈。 4.谓正直而通达事理。
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参考词条